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Frequently appeared sensor faults greatly reduce the usability and reliability of sensor networks. Distributed automatous faulty sensor detection is critical for self-managed and sustainable sensor networks. A number of detection methods have been proposed for specific fault types. In this paper, we propose a general approach for detecting arbitrary types of faults. The approach includes a new general...
Faulty sensor data undermine the usability and reliability of sensor networks. Distributed automatous faulty sensor detection is a critical component of a self-managed and sustainable sensor network. In this paper, we present a new distribution-based optimization approach for distributed faulty data detection. We propose a new statistical measurement mutual divergence as the optimization objective...
The energy-constrained wireless sensor nodes require the designs of energy-efficient content authentication protocols. In this paper, we combine the approaches of cryptography and content analysis to propose a new light-weight content authentication framework Cobra. In Cobra, only a small fraction of transmitted packets are protected with signatures. The unprotected packets are authenticated using...
Measuring traffic flow plays an important role in intelligent transportation systems. In recent years, the technology of sensor network has been brought into the field due to their reliability and non-intrusiveness. In this paper, we propose a framework to reduce the installation and maintenance cost of traffic measuring sensor networks. The key to the solutions lies on predicting the complete measurements...
The pursuit-evasion problem represents many important real-world applications. In this paper, we present a new adaptive pursuer collaboration method with the support of wireless sensor networks. We focus on two different evader motions, random movement and active escaping, and develop a moving pattern recognition algorithm based on information obtained by the sensor network. We compare two pursuing...
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